Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 250 · 40 questions

The fast method (Halve first): Halve the number. × 5: multiply the half by 10. × 50: multiply the half by 100. Odd number? Its half ends in .5 — 43 → 21.5 — and × 10 moves the point: 215.

1. 1.48 × 5 =
2. 2.83 × 50 =
3. 3.91 × 5 =
4. 4.85 × 50 =
5. 5.43 × 50 =
6. 6.38 × 5 =
7. 7.28 × 5 =
8. 8.53 × 5 =
9. 9.86 × 5 =
10. 10.90 × 50 =
11. 11.72 × 5 =
12. 12.36 × 5 =
13. 13.53 × 50 =
14. 14.13 × 50 =
15. 15.45 × 5 =
16. 16.54 × 5 =
17. 17.90 × 50 =
18. 18.15 × 5 =
19. 19.93 × 5 =
20. 20.12 × 50 =
21. 21.19 × 5 =
22. 22.40 × 50 =
23. 23.98 × 5 =
24. 24.22 × 50 =
25. 25.82 × 5 =
26. 26.80 × 5 =
27. 27.73 × 5 =
28. 28.24 × 5 =
29. 29.35 × 5 =
30. 30.64 × 5 =
31. 31.24 × 5 =
32. 32.75 × 5 =
33. 33.17 × 50 =
34. 34.58 × 50 =
35. 35.33 × 5 =
36. 36.32 × 5 =
37. 37.79 × 5 =
38. 38.55 × 50 =
39. 39.30 × 5 =
40. 40.39 × 5 =

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